We installed a biofilter and a chemical wet scrubber to eliminate VOCs, NH3 and odour that are emitted from the processing hall of a municipal waste treatment plant. The system has a capacity of 27 000 m3/h
Client: a multinational construction company
Location: Poland
Project duration: 12 months
Completion date: September 2023
Client asked to eliminate waste gas and odour emitted from their brand municipal waste treatment line in a proven and sustainable way. Therefore, a biofilter with a chemical wet scrubber was the solution that fits the scope, while activated carbon and plasma based solutions were not chosen.
Our team of specialist carried out the installation of a fan and air ducts according to the volume of waste gas to be treated (27 000 m3/h)
We manufactured and installed a chemical packed bed wet scrubber with a capacity of 27 000 m3/h. The scrubber regulate the moisture balance of the biofilter bed and remove or decrease the non-biodegradable or semi-biodegradable compounds and eliminate any particulates (PM) from the polluted gas stream. In addition, H2SO4 is added in case the pH of the water is too alkaline due to high concentration of NH3 in the waste gas.
Our scrubber has a body made of UV-resistant HDPE (high density polyethylene), the surface is smooth, UV‑radiation, weather and corrosion resistant. It is automatically controlled and it is equipped with a heating system for preventing freeze damage during the cold season.
The biofilter includes a biological active bed or filling (mixture of crushed husk, peat or similar materials and specific micro-organism) under which several grids are installed to equally distribute the polluted waste gas across it. The pollutants are adsorbed and metabolized by specific micro-organisms’ enzymes into carbon dioxide, water, inorganic salts, biomass and energy.
As the contaminants are decomposed and not just absorbed, the biofilter bed retains no residues from the original organic compounds present in the contaminated air stream. To improve the performance of biofilters, Dekonta provides the DEKONTAM-3© a biopreparation that includes bacterial cells, residual nutrients after fermentation, and a mineral fertilizer.
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